Fire-resisting shutter



AE. H. McCLOUD.

' FIRE RESISTING SHUTTER.

APPLICATION FIVLED APR.2, 1919.

v PatentevMay 3, 192i,

E $29@ @www `UNITED Sie? EDWARD v1H. MGCLOUD,

TEE KINNEAR MANUFACTURING OF OHIO.

or COLUMBUS, Cirio, AssieNon, BY MESNB ASSIGNMENTS, To COMPANY, or COLUMBUS, onio, A. CoBBoRATIoN FIRE-RESISTING- SHUTTER. v

T o all whom t may concern:

Be it known that I, EDWARD I-I. MoCLoUD, a citizen of the United States, residing at Columbus, in the county of tate of Ghio, have-invented a and useful Improvement in Fire-Resisting Shutters, of which the following is ak speci-A hcation.

The present invention relates to the type of means for releasing automatic Shutters or doors shown and described in the Letters Patent of the United States, No. 1,257 ,27 3 issued to me February 19, 1918.

In the use of the structure of that patent if it be desired to release the shutter for the purpose Y of ascertaining whether it is in proper working condition itis necessary to move or disturb the slide or movable member carrying the fusible link.

It is one of the objects of the present invention to provide a construction of the type referred to in which the other advantages of that type are retained and the shutter made releasablewithout disturbing the member that carries the thermally actuated member.

The invention is embodied in the example herein shown and described, the features of novelty being finally Claimed.

In the accompanying drawings- Figure 1 is an elevation of the upper right hand corner as viewed from the interior of a building showing a window equipped with an automatic shutter and my present invention as applied thereto.

Fig. 2 is a vertical section mainly on the line II-II Fig. 1 looking to the right.

Fig. 3 is a horizontal section on the line III- III Fig. 2 looking down.

In the views 5 designates one end of a shaft (spring holding or otherwise) of the winding drum upon which the shutter is wound, said Shaft containing a star wheel 6 adapted to be engaged by a tooth 7 on a lever 8 to prevent the star wheel from turning in one direction. u

In the present instance the fulcrum pin 8a of the lever 8 is extended and furnished with a pulley 9 having a the lever itself carries a small pulley 9a journaled in a suitable bracket on the lever and having a grooved rim in line with the grooved rim of the pulley 9.

12 designates a slide or movable member carrying a hook 14. The slide lies 1n a me- Speccaton of Letters Patent.

Franklin and certain new` grooved rim while tallic box or frame 16 permanently installed in the wall of lthe building open at its upper side within the wall,'but havinga hooded end 16 with an opening below where it prot-rudes beyond the building. rlhe slide 12 is held in the exposed end of the box by means of a pair of rods 13 threaded at their outer ends linto the slide,

Y Patented May 3, 1921. .Application inea Aprn 2, 191e. Seriai No. 286,900.

said .slide being said rods being held in position by means of Y avclip 15 and a bolt and nut clamping the inner ends of the rod to the foot or al cast iron member 17 at the inner end of the box.

10 designates a chain, wire or other flexible member containing a fusible link 11 which is engaged with the hook 14 and then passed an elbow 18, a guiding eye 19 and downward to any suitable device for fastening the' same.

(Not shown.) rI`he flexible member 10 is jthus doubly flexed by the pulleys 9 and '9a.

To hold the star wheel 6 from turning the lever 8 is raised until its tooth is engaged with the desired tooth of the star wheel-and the flexible member 10 drawn taut and fastened. The lever 8 can be drawn up into position to causeits tooth 7 to engage the star wheel by drawing upon the flexible member, and reversely said lever can be released from that position by manually slacking the flexible member. This last operation is performed when it is desired to test the shutter.

Incase of near-by fire the heat acts on the `fusible member 11 and releases the flexible member and permits the operation of the shutter in the same way.

With the present construction as distinguished from the construction of myv former patent hereinbefore referred to it is not necessary to movethe slide or its hook 11 to test the shutter. rllhe shutter can be tested as before indicated by simply slacking the flexible member land the lever 8 replaced to its holding position by drawing down on the flexible member.

The forms of the parts can be changed without departing from the gist of the invention as claimed.

WhatI claim is:

1. In combination with an Aautomatically closing fire shutter or door, means for latching the shutter, flexible means lfor actuating the latching means, thermally operated means in Said flexible means, a slide with inward under the pulley 9a and thence upward over the pulley 9, through Which said actuating means is connected for exposing said thermally operated means and meanscon the latching` means operated by the flexible means Without displacing the slide to cause the latching means to be brought into and out of latching position.

2. In combination With an automatically closing fire shutter or door, means for latching the shutter, flexible means for actuating` theA latching means7V thermally operated means in said flexible means, a slide with which said actuating1 means is connected for exposing said thermally operated means and means on the latching means including a pulley operated by theflexible means with` out displacing the slide to cause the latching means to be brought into and out of latching position. Y

3. In combinationyvith an automatically closing fire shutter erdoor7 means for latching the shutter, exible means for actuat- A ing the latchingmeans, thermally operated means in said flexible means, a slide With which said actuating` means is connected and means on the latching means 'including tWo pulleys traversed by the flexible means and operated by the flexible means to cause the latching means to be brought into and out of latching position.

4a In combination with an automatically closing fire shutter or door, means for latching the shutter, a flexible member for actuating the latchingmeans, thermally operated means in said flexible member, a slide with which said actuating member is connected for exposing the thermally operated means, and means in connection with the latchingmeans for doubly flexing said flexible member whereby the latching means may be swung into or out of latching position Without displacingthe slide. Y

EDWARD H. MCCLOUD. 

